Serviced Vintage 1974 JAPAN SEIKO LORD MATIC WEEKDATER 5606-7072 23Jewels Automatic.

Welcome to my auction!
I am Japanese who live in Tokyo.

Item description

It's a SEIKO Automatic Watch, LORD MATIC WEEKDATER 5606-7072 23Jewels .
It's in good used condition.
It's difficult to find this valuable watch in such a good condition. Highly recommended for SEIKO collectors!
Movement :
  • Pet name : 56 LORD MATIC WEEKDATER .
  • Caliber number : 5606A.
  • Movement : Automatic.
  • Beat rate : 21600bph.
  • Year of manufacture start : 1968's.
  • Factory : Suwa.
Externals :
  • Serial number : 417061.
  • Dial number : JAPAN 5606-7680R.
  • Glass : Crystal.
  • Case size : About 36.55mm.
  • Lug width : 18mm.
  • Band : Wrist size that can be worn is Up to about 198mm.
Condition :
  • Used, it runs well.
  • Quick set(Day/Date) : Okay.
    Set the day of the week can be in English or Kanji.
    Set of the date : The set at one stage pulling the crown.
  • The day difference time of an used watch is about +-1 minute / day.
  • Overhaul service in May 2026.
    The movement has been cleaned and oiled, so it works fine.
Key Features
  • The Standard of Mid-70s Executive Style (1974): In **1974**, the **Seiko Lord Matic (LM)** represented the definitive daily luxury watch for Japan's established professional class. The reference **5606-7072** was produced by the **Suwa Seikosha** factory during an era when mechanical watchmaking reached its pinnacle of everyday functionality to stand strong against the quartz transition. It offered the modern professional a clinical, reliable instrument that exuded executive competence, defining the disciplined and sharp-looking aesthetic of the mid-1970s Japanese corporate boom.
  • The Proven 23-Jewel Caliber 5606 Heart: This watch is powered by the **23-jewel Caliber 5606**, an ultra-slim high-grade automatic movement operating at **21,600 vibrations per hour (vph)**. In **1974**, the 56-series was world-renowned for its innovative slim profile, allowing the watch to maintain a sleek silhouette while offering premium features like **hacking seconds**, manual winding capability, and an integrated day-date quick-set. This caliber remains a masterpiece of Japanese engineering, designed for clinical precision and long-term daily reliability.
  • Architectural ""7072"" Grammar of Design Case: The reference **5606-7072** is a brilliant execution of the **Seiko ""Grammar of Design""** legacy. The stainless steel case features sharp, angular lugs and mirror-polished flat surfaces that create a crisp play of light and shadow. As an evolved iteration of the classic 7070 case, the 7072 profile optimized wrist presence with a low center of gravity. In **1974**, this geometric design ensured the watch sat perfectly flush and comfortably on the wrist, maintaining a dignified executive profile under a tailored sleeve.
  • Masterful ""Weekdater"" Dial Harmony: The dial of the **5606-7072** is a study in functional luxury, featuring a radiant sunburst silver finish and **hand-applied, multi-faceted baton indices**. The dual-calendar window at 3 o'clock houses a **bilingual (English/Kanji) day disk**, prioritizing instant legibility for the internationalizing Japanese workforce. The applied **""LM"" logo** and the Suwa lightning bolt symbol at 6 o'clock remain prestigious hallmarks of an era that valued uncompromising industrial pride and meticulous attention to detail.
  • A Landmark of Suwa's Slim Mechanical Legacy: Produced in **1974**, the 5606-7072 remains a highly respected reference for collectors who value the **""Mechanical Golden Age.""** It represents the perfect intersection of **mechanical complexity and the minimalist modernist movement** of the 1970s. It stands as a testament to an era when Suwa Seikosha perfected the **""high-utility professional automatic,""** creating a reliable and visually striking masterpiece that remains as stylish and accurate today as it was over half a century ago.
    • For more information, please look at the pictures.
    Notes
    • Before buying.
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